(R)-4-{(2R,7S)-7-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-propyl]-2,3,6,7-tetrahydro-oxepin-2-yl}-4-chloro-butyronitrile

(R)-4-[(2R,7S)-7-((S)-1-Bromo-propyl)-2,3,6,7-tetrahydro-oxepin-2-yl]-4-chloro-butyronitrile

(R)-4-Chloro-4-[(2R,7S)-7-((R)-1-hydroxy-propyl)-2,3,6,7-tetrahydro-oxepin-2-yl]-butyronitrile

(2S,7R)-2-[(1S)-1-bromopropyl]-7-[(1R)-chloro-4-hydroxybutyl]-2,3,6,7-tetrahydrooxepin

(R)-4-[(2R,7S)-7-((S)-1-Bromo-propyl)-2,3,6,7-tetrahydro-oxepin-2-yl]-4-chloro-butyraldehyde